18079149 has 8 divisors (see below), whose sum is σ = 26296992. Its totient is φ = 10957040.

The previous prime is 18079147. The next prime is 18079153. The reversal of 18079149 is 94197081.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18079149 - 2¹ = 18079147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18079147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273894 + ... + 273959.

It is an arithmetic number, because the mean of its divisors is an integer number (3287124).

Almost surely, 2^18079149 is an apocalyptic number.

It is an amenable number.

18079149 is a deficient number, since it is larger than the sum of its proper divisors (8217843).

18079149 is a wasteful number, since it uses less digits than its factorization.

18079149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547867.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 18079149 is about 4251.9582547339. The cubic root of 18079149 is about 262.4577056575.

The spelling of 18079149 in words is "eighteen million, seventy-nine thousand, one hundred forty-nine".